Simplifying:
2n-21=0.25n
We move all terms containing n to the left and all other terms to the right.
+2n-0.25n=+21
We simplify left and right side of the equation.
+1.75n=+21
We divide both sides of the equation by 1.75 to get n.
n=12
Answer:
2x² + 6
Step-by-step explanation:
f(g(x)) = 2(g(x))
= 2(x² + 3)
= 2x² + 6
Answer:
$190
Step-by-step explanation:
Put 280 where m is, and do the arithmetic.
C(280) = 0.5·280 +50 = 140 +50 = 190
The cost of Ann's rental is $190.
Answer:
x = 6
Step-by-step explanation:
Answer: He should have used the mean to determine the average because the data sets are approximately symmetric.
Step-by-step explanation
